loncom/html/adm/loginproblems.html - view

File: [LON-CAPA] / loncom / html / adm / loginproblems.html
Revision 1.5: download - view: text, annotated - select for diffs
Sun Mar 2 02:16:53 2003 UTC (21 years, 4 months ago) by www
Branches: MAIN
CVS tags: HEAD

Bug #1285
loncron cleans login tokens after a day.
* lonauth now give better error messages
* lonlogin refreshes the login page after a day
  (so the "expired" error should never happen anyway)
* loginproblems was adapted

1: <html> 2: <head> 3: <title>LON-CAPA Login Problems</title> 4: <script> 5: function openwin() { 6: var testwin=window.open('/adm/rat/empty.html','test','menubar=0,width=200,height=100'); 7: testwin.document.clear(); 8: testwin.document.writeln('PASSED TEST'); 9: testwin.document.close(); 10: testwin.focus(); 11: } 12: </script> 13: </head> 14: <body bgcolor="#FFFFFF"> 15: <h1>Login Problems with LON-CAPA</h1> 16: <h2>Which browsers can I use with LON-CAPA?</h2> 17: LON-CAPA is designed to work with the following browsers 18: <ul> 19: <li>Mozilla version 1.0 and higher</li> 20: <li>Netscape version 4.7 and higher</li> 21: <li>Safari</li> 22: <li>Galeon version 1.2 and higher</li> 23: <li>Internet Explorer version 5.1 and higher</li> 24: </ul> 25: on the following operating systems 26: <ul> 27: <li>Linux</li> 28: <li>UNIX</li> 29: <li>MacOS</li> 30: <li>Windows 98, NT, 2000, ME, and XP</li> 31: </ul> 32: If you have problems logging in with any browser or any operating system not 33: listed above, please <b>use another browser or computer.</b> 34: <h2>I have accessibility needs</h2> 35: Please use the 36: <a href="/adm/login?interface=textual">alternative text-based login mode</a>. 37: Please let the system administrator know if you have any problems. 38: <h2>I would like to use my Pocket Computer or PDA to access LON-CAPA</h2> 39: While we can make no guarantees that LON-CAPA will work with your particular 40: Pocket Computer or PDA, you might want to try the 41: <a href="/adm/login?interface=textual">alternative text-based login mode</a>. 42: <h2>I get "Username and/or password could not be authenticated"</h2> 43: <ul> 44: <li> 45: The most common problem here is that the Caps-Lock button is pressed. Usernames 46: and passwords are case sensitive, so it does matter if something is typed with 47: lowercase or with uppercase letters. 48: </li><li> 49: The second most common problems is that users accidentally go to the wrong 50: server. LON-CAPA is running at many universities, colleges, and schools. 51: Especially if you hit upon this page by looking for "LON-CAPA" in Google or 52: some other search engine, you might have hit a server at another place. Please 53: make sure to use the URL provided to you. 54: </li></ul> 55: <h2>I get a list of computers ...</h2> 56: This means that the server you attempted to login to is currently not 57: available. For example, it might be undergoing maintenance. Please click on 58: any of the other server, giving preference to the ones that say "preferred." 59: <h2>I get "Information needed to verify your login information is missing, inaccessible or expired"</h2> 60: LON-CAPA does internal encryption of password information submitted from the 61: login screen, but only keeps the decryption information for a day. Simply pull 62: up the login screen again. 63: If that does not solve the problem, please wait for 20 minutes, reload 64: the login page, and try again. If after 20 minutes LON-CAPA still gives you 65: the same message, please email the Server Administrator listed on the login 66: page. The Server Administrator can verify your situation and re-enable logins. 67: <h2>I hit "Log In," but nothing happens, or I get error messages and 68: warnings</h2> 69: <ul> 70: <li>The most common problem is that your browser is not one of the browsers 71: listed above.</li> 72: <li>You might have modified the preferences in your browser. In particular, the 73: following preferences can be a problem: 74: <ul> 75: <li>Scripting languages, in particular JavaScript, is disabled. 76: <i>Test: as you <a href="javascript:alert('PASSED TEST');">click here</a>, 77: a small window should appear. If no window appears, scripting is disabled.</i> 78: </li> 79: <li>The security settings are cranked up to a higher level. In particular, this 80: might prevent unencrypted submission of passwords (LON-CAPA actually does its 81: own encryption), or cross-server submission of forms. 82: </ul></li> 83: <li>If all else fails, please <b>try from another computer.</b></li> 84: </ul> 85: <h2>After logging in, I get the message "Welcome," but then nothing happens 86: </h2> 87: <ul> 88: <li>The most common problem is that your browser is not one of the browsers 89: listed above.</li> 90: <li>If you have a supported browser, it might be hung. 91: <b>Please completely quit 92: your browser, and start it again.</b></li> 93: <li>You might have installed a filter against so-called "pop-up ads" (those 94: obnoxious windows that come up into your face trying to sell you something 95: while you are surfing). These filters will prevent LON-CAPA from running 96: properly. Please disable the filter for your school's domain, for example 97: "<tt>xyzu.edu</tt>." 98: <i>Test: as you <a href="javascript:openwin();">click here</a>, 99: a small window should appear. 100: If no window appears there, but 101: <a href="javascript:alert('THIS COMES UP');">this window</a> does come up, 102: pop-up filters are active.</i></li> 103: <li>You might be getting your internet access from a free service provider 104: which adds banner ads to your pages. These ads conflict with LON-CAPA, you 105: will need to use another provider.</li> 106: <li>If you do not want to re-adjust the preferences of your browser, you might 107: want to use the 108: <a href="/adm/login?interface=textual">text-based login mode</a>. 109: <li>If all else fails, please <b>try from another computer.</b></li> 110: </ul> 111: </body> 112: </html>